[PATCH v17 10/47] dept: distinguish each work from another
flat view
STALE311d
From: Byungchul Park <byungchul@sk.com>
Date: 2025-10-02 08:13:26
Also in:
dri-devel, linux-arch, linux-block, linux-doc, linux-ext4, linux-fsdevel, linux-i2c, linux-ide, linux-media, linux-mm, linux-nfs, linux-rt-devel, lkml, netdev, rcu
Subsystem:
the rest, workqueue · Maintainers:
Linus Torvalds, Tejun Heo
Revision v17 of 12 in this series.
Revisions (12)
Workqueue already provides concurrency control. By that, any wait in a work doesn't prevents events in other works with the control enabled. Thus, each work would better be considered a different context. So let dept assign a different context id to each work. Signed-off-by: Byungchul Park <byungchul@sk.com> --- kernel/workqueue.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index c6b79b3675c3..0e05648b4501 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c@@ -55,6 +55,7 @@ #include <linux/kvm_para.h> #include <linux/delay.h> #include <linux/irq_work.h> +#include <linux/dept.h> #include "workqueue_internal.h"
@@ -3153,6 +3154,8 @@ __acquires(&pool->lock) lockdep_copy_map(&lockdep_map, &work->lockdep_map); #endif + dept_update_cxt(); + /* ensure we're on the correct CPU */ WARN_ON_ONCE(!(pool->flags & POOL_DISASSOCIATED) && raw_smp_processor_id() != pool->cpu);
--
2.17.1